DLL and GCC

I think this is a basic question...
Could anyone tell me please, how to import DLLs using GCC?

I'm using Dev C++...

This one keep failing... :(

Code:

---

#define IMPORT __declspec (dllimport)

template<typename T>class IMPORT TestClass {
public:
  T add(T a, T b);
};

int main() {
  TestClass<int> test;
  test.add(10, 20);
};

---

Code:

---

  [Linker error] undefined reference to `TestClass<int>::add(int, int)'

---

Thanks in advance.

I don't know if I've quite got a hold of what you're asking, but if your DLL has a definition of a template function in it, that's not going to do you any good, since a template definition doesn't compile into anything and g++ doesn't support export yet.